Roof-square.



W. S. RODGERS.

ROOF SQUARE.

APPLICATION FILED JAN- 15. 1915.

1 1 90,0 1 3 PatenteILJifly 4, 1916.

2 SHEETS-SHEET l.

W. S. RODGERS.

ROOF SQUARE.

APPLICATION FILED um. 15. 1915.

1,1 90,01 3. Patented July 4, 1916.

2 SHEETS-SHET 2.

onion.

WALTER S. RODGERS, OF DEMING, NEW MEXICO.

ROOF-SQUARE.

Application filed January 15, 1915. Serial No. 2,392.

T (ZZZ whom it may concern:

Be it known that I, VVAL'rnn S. Rononns, a citizen of the United States, residing at Deming, in the county of Luna andState of New Mexico, have invented certain new and useful Improvements in Roof-Squares; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to roof squares, and one of the principal objects of the invention is to provide a device of simple construction which can be quickly set for marking the cuts to be made on rafters of any pitch of roof, and in which the various elements may be folded inward to provide a small tool which will occupy but little space.

Another object of the invention is to provide a roof square which can be quickly adjusted for marking the right and left without changing the adjustment of the blades, and to provide a device in which a hip-roof can be laid off and the rafters marked for cutting the three angles without adjusting the tool for the different cuts.

These and other objects may be attained by means of the construction illustrated in the accompanying drawings, in which,

Figure 1 is a side elevation of a roof square made in accordance with this invention, Fig. 2 is a bottom plan view of the same with the blades adjusted for marking right and left rafters, Fig. 3 is a plan view of one of the try-square blades, Fig. 41 is a side elevation with the try-square blade extending at an angle to the handle member, Fig. 5 is a vertical sectional view through the tool'taken on the line 55 of Fig. 1 looking in the direction indicated by the arrow, and Fig. 6 is a plan view of one of the try-square members removed from the tool;

Referring to the drawings, the numeral 1 designates a handle member, and secured in tudinal flanges 6. The opposite ends of the flanges 6 are enlarged, as indicated at 7, and

Specification of Letters Patent.

Patented July 4, 1916.

pivotally secured to pairs of arms or blades 8. The blades 8 are each provided with a longitudinal slot 9, the longitudinal edges of the slots being beveled as shown at 10 to provide means whereby the heads 11 of the adjusting screws 12 will lie flush with the under face of the blade 8. Wing nuts 13 are fitted to the screws 12.

Pivo-tally connected at opposite. ends of the tool uponrscrews 15 are the arms or blades 16 and 17, said blades being disposed between the two spaced members 5, said screws 15 being provided with nuts 18. The

blades 16 and 17 are each provided with a longitudinal slot 19, by means of which the blades may be folded between the members 5 or extended at any desired angle thereto and held in an adjusted position by tightening the screws 15. The blade 17 is provided with a branch slot and the blade 16 is also provided with a similar branch slot 21.

In practice, the device is to be employed for measuring and cutting the oblique ends of roof beams, in which operation the arms or blades 16 and 17 are adjusted for cutting the end of the beam on the desired angle to accord with the pitch of the roof. To mark the beam, the blades or arms 16 and 17 are laid flat against the rafter or beam and the edge of the latter is engaged by one of the flanges 6. In making miter cuts the blades or arms 8 are properly adjusted and secured in position by the thumb nuts 18 and screws 12, it being understood that due to the position of two pairs of blades 8 the device may be reversed for cutting out opposite similar angles of the rafters or beams.

In operation, this device is employed for properly marking the oblique ends of the roof beams, the blades 17 being for the purpose of measuring the angle to be out at one end of the roof beam, on the portion adj acent the. hip of the roof. It is of course apparent that the blade 16 is used in a similar manner for measuring the angle to be cut from the beam forming the opposite side of the roof. After the blades have been properly adjusted by means of the slot 19 and the set screw 15 the instrument is placed with the member 6 against one end of the beam to be cut, .the blades 16 or 17 according to the angle, lying with the upper surface of the beam. The instrument is now ready to make the correct marking. In making the miter cuts the miter blades 8 are brought into play and will be readily adjusted to the desired angle to accord with the cut efiected, by'loosening the nuts 11 and moving the arms inwardly or outwardly as the case may be.

Various changes may be made in the details of construction without departing from the spirit and scope of the invention as defined in the claims:

What is claimed is 1. A roof square comprising a handle, supporting members spaced apart and connected to the handle, said supporting members having an ular portions, blades pivotally and adjustably mounted on said angular portions, and blades mounted between said supporting members and provided with longitudinal slots and screws for holding the last mentioned blades in adjusted position.

2. A roof square comprising a handle, sup

v \VALTER S. RODGERS. Witnesses:

J. B. HoDeDoN,

(Jr-nus RAITHEL.

@epies of this patent may be obtained for five cents each, by addressing the Commissioner of lateltli Washington, D. C. 

